Q4 Plus Turf Herbicide can harm desirable ornamentals if sprayed directly or too much drift contacts them. It is recommended to apply on a calm, non- windy day to avoid contact.
Q4 Plus Turf Herbicide should be mixed at at 2.5 oz. per gallon of water per 1000 sq. ft. to treat Virginia buttonweed.
Q4 Plus Turf Herbicide increases the carbon dioxide in the weed resulting in death. Wild violets will require more than one application to get control according to the product label.
We do not have a post-emergent herbicide that will contain all 4 of the active ingredients you mentioned. Without knowing what weeds are being targeted, it is hard to make a recommendation. In most cases, tank mixing two herbicides is allowed if permitted on the product labels. You would follow the most restrictive label in regards to tank mixing. Q4 Plus tends to be the most popular for broadleaf weed control in cool-season turf. Here are some other options.
QuickSilver Herbicide contains Carfentrazone-ethyl
Ferti-lome Weed Free Zone contains 2,4-D, mecoprop-p, dicamba and carfentrazone-ethyl.
E-2 Herbicide contains 2,4-D, Fluroxpyr, and Dicamba
Q4 Plus contains 2,4-D, Dicamba, Quinclorac and Sulfentrazone
Solitare Herbicide contains Quinclorac & Sulfentrazone.
Turf species listed on the product label can be seeded one week after application of Q4 Plus Turf Herbicide.
Q4 Plus Turf Herbicide should not be applied inside the dripline or roots of any edible trees.
Q4 Plus Turf Herbicide can be applied as broadcast twice a year with 30 days in between each application. You can spot treat if needed throughout the year staying below max labeled rates for your turf type.
The amount of Q4 Plus Turf Herbicide you will need will depend on what and where you will be treating. The product label suggests using between 1.8-2.6 fl oz per one gallon to treat 1000 sq. feet.
The mixing ratio of Q4 Plus Turf Herbicide will vary according to what type of turf grass is in the area that is being treated. For cool season grasses, the amount is 7- 8 pints per acre (2.6 to 3.0 oz per 1000 sq. ft). For warm season grasses you use 5-7 pints per acre (1.8 to 2.6 oz per 1000 sq.ft.).
Yes, Q4 Plus Turf Herbicide can be applied at the same time as a fertilizer. As always be sure you are applying these products during the cooler times of the day when temps are below 85 degrees.
The shelf life of Q4 Plus Turf Herbicide is 3-5 years if stored in a room temperature setting. This product should be kept out of extreme temperatures, which are under 35 degrees Fahrenheit and over 90 degrees Fahrenheit.
Yes, we recommend applying Q4 Plus Turf Herbicide in either early morning or late evening when the temperatures are at their lowest.
Q4 is not going to move through the soil and affect other plants that were not directly sprayed with the product. If you have watered the area well and it did not contact others or their roots, they should be fine. The label does state not to apply to ornamental landscape beds. We would recommend contacting the manufacturer directly for timing of when you can apply in that area. PBI Gordon can be reached at 800-821-7925.
Per the Q4 label: Application around a cistern or well may result in contanimation of drinking water or ground water.
The application rate of Q4 Plus Turf Herbicide varies depending on what type of truf grass you have. Cool Season Grasses: 2.6 - 3 oz. per 1,000 sq. ft. (7 - 8 pints per acre) Warm Season Grasses: 1.8 - 2.6 oz. per 1,000 sq. ft. (5 - 7 pints per acre) Please let us know if you have any more questions.
The product label for Q4 Plus Turf Herbicide states that you should not apply the product above 90 degrees. Although it does not give a specific temperature for being too cold, most herbicides should be applied between 65 degrees and 85 degrees, when the target weeds are actively growing.
Q4 Plus Turf Herbicide will suppress Bahia in Bermuda grass.
Yes, Q4 Plus Turf Herbicide can be used to control barnyardgrass in a Bermuda lawn.
Q4 Plus Turf Herbicide will not harm your putting green, as long as the turf is listed as tolerant on the label and you apply when temps are below 80 degrees.
Q4 Plus Turf Herbicide is not labeled to control dallisgrass. Please review our How to Get Rid of Dallisgrass Treatment Guide for information on eradicating this weed.
